wow never heard of a test. I Miami the only 5 questions to rent would be
1) are you over 21?
2) do you have a drivers license?
3) habla english?
4) are you drunk?
5) okay so are you sober enough to drive?
Not sure Patrick. I've never been further north in FL than West Palm Beach.
Best bet is to just keep doing what you are doing and google jetski rental places and ask
Also the jetski message boards in my signature each have threads by area so if you ask in the FL ones they may be able to tell you . Good luck!